Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider the following electrochemical cell at 298 K
.
If the reaction quotient at a given time is 
, then the cell EMF ( 
) is 
(Nearest integer).
Given the standard half-cell reduction potential as
and 
Text Solution
Verified by ExpertsThe correct answer is:
4
(4)
The electrochemical cell has cathode:
with 
and anode:
with 
.
The standard cell EMF is 
.
Using the Nernst equation with 
and 
electrons transferred:
.
Expressing as 
:
, so 
(nearest integer).
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